Cam Followers vs Roller Followers
Introduction
Although often used interchangeably, cam follower and roller follower bearings are distinct components with the common purpose of translating the rotary motion of a cam into linear motion. In this article, we will explain the differences between these two bearings, providing insights into their characteristics, advantages, and diverse industry applications.
Roller Followers
Characteristics
A roller follower, also known as a track follower, is a compact bearing system designed to reduce frictional loss in the valvetrain and prevent stress within the camshaft. Comprising components such as an outer ring, seal, needle roller, inner ring, side plate, and cage, roller followers come in two types: separable (with separable inner rings) and non-separable (with non-detachable inner rings).
Common Applications
Roller followers find their utility in a plethora of industrial settings, offering optimal performance in stationary engines, aircraft applications, bookbinding machines, and various automated systems, including pallet changers, conveyors, and tool changers.
Cam Followers
Characteristics
Cam followers, similar to roller followers, are rigid, compact bearings that convert rotary motion into linear motion. They play a vital role in maintaining precision by reducing wear and sliding friction on the cam and track. Comprising an outer ring, seal slide plate, cage, needle roller, and stud, the cylindrical or spherical outer ring distinguishes cam followers. The key distinction lies in the built-in mounting shaft, providing ease of installation.
Common Applications
Cam followers are widely employed in industrial applications involving conveyors, process transfer lines, power generation, metal processing, transportation, food processing, and packaging. Their versatile use extends to machines such as pallet changers, automated coating machines, and tool changers.
Cam vs Roller Followers
While both cam and roller followers boast similar load ratings and performance capabilities, the choice between them hinges on specific design constraints. Cam followers come with a built-in mounting shaft, while roller followers require attachment to an existing shaft. The decision rests on the design, with cam followers offering convenience when a flat surface is available for mounting, and roller followers providing flexibility through separable or non-separable inner rings.
Conclusion
In conclusion, the choice between cam and roller followers hinges on the specific constraints and requirements of the application. Whether it's the convenience of a built-in shaft or the flexibility of matching to an existing one, both cam followers and roller followers play integral roles in the world of converting motion with precision.
HVH Industrial Solutions is an authorized distributor of IKO and Smith Bearing, and we offer a wide range of their bearing products. We work closely with their engineering team to provide superior customer service and engineering support.
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